Supernova 2011gx in ESO 252-G10 = Tcp J05060576-4503003

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dc.catalogadordfo
dc.contributor.authorHowerton, S.
dc.contributor.authorDrake, A. J.
dc.contributor.authorDjorgovski, S. G.
dc.contributor.authorMahabal, A.
dc.contributor.authorGraham, M. J.
dc.contributor.authorWilliams, R.
dc.contributor.authorPrieto, J. L.
dc.contributor.authorCatelan, Marcio
dc.contributor.authorMcNaught, R. H.
dc.contributor.authorGarradd, G.
dc.contributor.authorBeshore, E. C.
dc.contributor.authorLarson, S. M.
dc.contributor.authorChristensen, E.
dc.contributor.authorOchner, P.
dc.contributor.authorValenti, S.
dc.contributor.authorBenetti, S.
dc.contributor.authorPastorello, A.
dc.contributor.authorTomasella, L.
dc.contributor.authorBufano, F.
dc.date.accessioned2024-03-05T15:15:25Z
dc.date.available2024-03-05T15:15:25Z
dc.date.issued2011
dc.description.abstractReport the discovery of an apparent supernova in public images from the Siding Spring Survey (SSS). SN 2011 UT R.A. (2000.0) Decl. Mag. Offset 2011gx Oct. 3.69 5 06 05.76 -45 03 00.3 18.3 41".5 W, 10".7 S Nothing was visible at this position on a SSS image from Mar. 5.52 UT (limiting mag 19.5). The object was designated TCP J05060576-4503003 when it was posted on the Central Bureau's TOCP webpage and is here designated SN 2011gx based on the spectroscopic confirmation reported below. Infrared CCD magnitudes (filter bandpass > 700 nm) for 2011gx by Joseph Brimacombe, Cairns, Australia: Oct. 5.584, 16.8 (position end figures 05s.76, 00".7); 6.701, 16.6 (image posted at URL http://www.flickr.com/photos/43846774@N02/6218866501/); 8.780, 16.7; 9.638, 16.5; 10.769, 16.6; 12.675, 16.6 (image posted at website URL http://www.flickr.com/photos/43846774@N02/6238615803/). P. Ochner, S. Valenti, S. Benetti, A. Pastorello, and L. Tomasella, Istituto Nazionale di Astrofisica (INAF), Osservatorio Astronomico di Padova; and F. Bufano, INAF, Osservatorio Astronomico di Catania, on behalf of a larger collaboration, report that a spectrum of TCP J05060576-4503003 = SN 2011gx, obtained on Oct. 18.17 UT with the New Technology Telescope (+ EFOSC2; range 360-930 nm; resolution 1.8 nm) shows it to be a type-II supernova. The best fit to this spectrum found by GELATO (Harutyunyan et al. 2008, A.Ap. 488, 383; publicly available at https://gelato.tng.iac.es) is with spectra of type- II-plateau supernovae at about one month post-explosion. Together with the classical P-Cyg Balmer features, prominent lines of Ca II, Fe II, and Na I D are detected. Adopting a recessional velocity of 9821 km/s for ESO 252-G10 (Lauberts and Valentijn, 1989, THE SURFACE PHOTOMETRY CATALOGUE OF THE ESO- UPPSALA GALAXIES, European Southern Obsrvatory) the expansion velocity deduced from the H_alpha absorption is about 8000 km/s....
dc.fuente.origenORCID
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/84178
dc.information.autorucInstituto de Astrofísica; Catelan , Marcio; 0000-0001-6003-8877; 1001556
dc.language.isoen
dc.rightsacceso restringido
dc.titleSupernova 2011gx in ESO 252-G10 = Tcp J05060576-4503003
dc.typeinforme
sipa.codpersvinculados1001556
sipa.trazabilidadORCID;2024-01-22
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